/*
 * Software License Agreement (BSD License)
 *
 *  Copyright (c) 2011 Willow Garage, Inc.
 *    Suat Gedikli <gedikli@willowgarage.com>
 *
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   * Neither the name of Willow Garage, Inc. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 *  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 *  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 *  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 *
 */
#ifndef __OPENNI_IMAGE_YUV422__
#define __OPENNI_IMAGE_YUV422__
#include "openni_image.h"

namespace openni_wrapper
{

/**
 * @brief Concrete implementation of the interface Image for a YUV 422 image used by Primesense devices.
 * @author Suat Gedikli
 * @date 02.january 2011
 */
class ImageYUV422 : public Image
{
public:
  ImageYUV422 (boost::shared_ptr<xn::ImageMetaData> image_meta_data) throw ();
  virtual ~ImageYUV422 () throw ();

  inline virtual Encoding 
  getEncoding () const
  {
    return (YUV422);
  }

  virtual bool isResizingSupported (unsigned input_width, unsigned input_height, unsigned output_width, unsigned output_height) const;
  virtual void fillRGB (unsigned width, unsigned height, unsigned char* rgb_buffer, unsigned rgb_line_step = 0) const throw (OpenNIException);
  virtual void fillGrayscale (unsigned width, unsigned height, unsigned char* gray_buffer, unsigned gray_line_step = 0) const throw (OpenNIException);
  inline static bool resizingSupported (unsigned input_width, unsigned input_height, unsigned output_width, unsigned output_height);
};

bool ImageYUV422::resizingSupported (unsigned input_width, unsigned input_height, unsigned output_width, unsigned output_height)
{
  return (output_width <= input_width && output_height <= input_height && input_width % output_width == 0 && input_height % output_height == 0);
}
} // namespace

#endif // __OPENNI_IMAGE__
